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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#20563 | #2617. Browsing the Collection | BinDir0# | WA | 2ms | 4240kb | C++20 | 2.2kb | 2022-02-16 16:31:52 | 2022-05-03 10:35:49 |
Judging History
answer
#include <bits/stdc++.h>
#define pr pair< int , int >
#define F first
#define S second
using namespace std;
int n , m , M , a[550][5] , dis[550][1 << 5] , vis[550][1 << 5] , nex[550] , pre[550] , ans[550][550];
vector< pr > son[550][1 << 5];
queue< pr > q;
int main()
{
// freopen("1.in" , "r" , stdin);
// freopen("1.out" , "w" , stdout);
scanf("%d%d" , &n , &m); M = (1 << m) - 1;
for(int i = 1 ; i <= n ; i++ )
for(int j = 0 ; j < m ; j++ ) scanf("%d" , &a[i][j]);
for(int i = 1 ; i <= n ; i++ ) pre[i] = i - 1 , nex[i] = i + 1;
pre[1] = n; nex[n] = 1;
for(int i = 1 ; i <= n ; i++ )
{
for(int msk = 0 ; msk <= M ; msk++ )
{
//right
int qwq = pre[i];
while(1)
{
int f = 1;
for(int j = 0 ; j < m ; j++ )
if(a[qwq][j] != a[i][j] && (msk & (1 << j))) { f = 0; break; }
if(f)
{
if(qwq != i) son[i][msk].push_back({qwq , msk});
break;
}
qwq = pre[qwq];
}
//left
qwq = nex[i];
while(1)
{
int f = 1;
for(int j = 0 ; j < m ; j++ )
if(a[qwq][j] != a[i][j] && (msk & (1 << j))) { f = 0; break; }
if(f)
{
if(qwq != i) son[i][msk].push_back({qwq , msk});
break;
}
qwq = nex[qwq];
}
//remove
for(int j = 0 ; j < m ; j++ )
if(!(msk & (1 << j))) son[i][msk].push_back({i , msk | (1 << j)});
//add
qwq = pre[i];
while(1)
{
int t = 0 , id = 0;
for(int j = 0 ; j < m ; j++ )
if((msk & (1 << j)) && a[qwq][j] != a[i][j]) t++ , id = 1 << j;
if(!t) break;
if(t == 1) son[i][msk].push_back({qwq , msk ^ id});
qwq = pre[qwq];
}
}
}
for(int s = 1 ; s <= n ; s++ )
{
memset(vis , 0 , sizeof(vis));
for(int msk = 0 ; msk <= M ; msk++ )
vis[s][msk] = 1 , dis[s][msk] = 0 , q.push({s , msk});
while(!q.empty())
{
int x = q.front().F , y = q.front().S; q.pop();
for(pr v : son[x][y])
{
if(!vis[v.F][v.S])
{
vis[v.F][v.S] = 1; dis[v.F][v.S] = dis[x][y] + 1;
q.push(v);
}
}
}
for(int i = 1 ; i <= n ; i++ ) ans[i][s] = dis[i][0];
}
for(int i = 1 ; i <= n ; i++ )
{
for(int j = 1 ; j <= n ; j++ ) printf("%d " , ans[i][j]);
printf("\n");
}
return 0;
}
/*
*/
Details
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Test #1:
score: 0
Wrong Answer
time: 2ms
memory: 4240kb
input:
9 3 5 3 7 5 3 4 5 3 7 5 3 2 5 3 4 5 3 7 2 3 7 5 3 7 2 3 7
output:
0 1 2 1 2 3 1 2 1 1 0 1 1 2 2 1 3 2 2 1 0 1 1 2 1 3 2 3 2 1 0 1 1 1 3 2 3 2 2 1 0 1 1 3 2 3 1 3 1 1 0 1 2 2 2 1 3 1 2 1 0 1 2 2 1 3 1 2 2 1 0 1 1 1 3 1 2 3 2 1 0
result:
wrong answer 48th numbers differ - expected: '2', found: '3'